Dual Soul Sacrifice

You point your hand at a creature you wish to see die, no matter the cost. Your soul leaves your body and attempts to force its way into your target’s body. The target must succeed on a either a Charisma or Constitution saving throw (your choice). On a success, you instantly die and cannot be resurrected through any means short of divine intervention. On a fail, your soul enters the body of your target and begins to merge with the creatures soul. Constructs and undead automatically succeed on this saving throw. At the end of the duration, you soul and the target’s are completely merged, you both can cast the wish spell once individually without using spell slots or components and without suffering the consequences of casting wish. The effect of the wish spell cannot duplicate a 8th level spell or lower and cannot end this spell either. Additionally, the effect cannot undo the effect of this spell or the effect of the other individuals wish spell. After both wishes take effect, you both die and cannot be brought back to life through any means short of a divine intervention. If the target succeeds on the saving throw, you gain a single wish. The previously stated restrictions function on this wish.